SAN FRANCISCO — A 30-year-old woman suffered a heart attack mid-Sunday morning while running a half-marathon in the city, a fire dispatcher said.

Paramedics responded about 9:45 a.m. to Marina Boulevard at Laguna Street for a report of a collapsed runner taking part in the San Francisco Rock n’ Roll Half Marathon, according to the San Francisco Fire Department.

The woman was in cardiac arrest but was revived by paramedics and taken to a hospital in serious condition, the dispatcher said.

Bay City News contributed to this report. Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.

(Click here if you are unable to view this photo gallery on your mobile device) The Ruth Bancroft Garden in Walnut Creek celebrates the life of its founder Ruth Bancroft who died at 109 on November 26, 2017. The Ruth Bancroft Garden is a nonprofit public dry garden that was planted by Mrs. Ruth Bancroft in 1972 and was opened to the...